These stones are iron concretions, and they all contain Pyrite and Palladium. They work in pairs of one male and one female, like Moqui Balls, but are much more powerful. It seems like both Boji and Moqui Balls align the chakras (energy centres) and are very grounding. Moqui Balls are softer, Boji stronger, which can be felt as violent for some. They should be protected from sun and water, it is iron!!Pair of Boji stones, slightly oval shape.
Male stone dimensions:
height 27 mm
width 25 mm
Female stone dimensions:
height 30 mm
width 19 mm